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(No Model.)

' 2 Sheets-Sheet 1. 0. M. MURSE. GRAIN CLEANER.

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(No Model.) sheets-sheen 2. O. M. MORSE. GRAIN CLEANER.

No. 414,431. Patented Nov. 5, 1889.

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11mm/l N. PETERS Phato-Lilbtgmpher, Wlhngiolx DLC- UNITEDl STATES ORVILLE M. MORSE1 OF JACKSON, MICHIGAN, ASSIGNOR TO THE KNICKER- BOC/RER COMPANY, OF SAME PLACE.

GRAIN-CLEANER.

SPECIFICATION forming part of Letters `Patent No. 414,431, dated November 5, 1889.

Application filed March 9, 1887. Serial No. 230,199. (No model.)

To a/ZZ whom, t may concern: o

Be it known that I, OnvILLn M. Monsn,-of Jackson, in the county of Jackson and State of. Michigan, have invented new and useful Improvements in Grain-Cleaners, of which the following is a specification.

This invention relates to agrain-cleauer which is provided with a perforated scouring-case in which the grain is freed from the adhering dust and impurities and a surrounding tight jacket which receives the dust and air passing through the perforations of the scouring-case. Grain-cleaners of this kind are now generally connected with a dust-col` lector, which receives the dust-laden air-current from the fan of the grain-cleaner and which separates the dust from the air.

The object of my invention isto produce a machine in which the scouring-machine is directly combined with a dust-collecting contrivan ce, so that the air which escapes from the machine is practically free from dust, thereby greatly simplifying the construction of the machine, reducing its first cost, and lessening the expense of operating the same.

My invention consists of the improvements which Will he hereinafter fully described, and pointed out in the claims.

In the accompanying drawings, consisting of two sheets, Figure l is a sectional elevation of my improved grain-cleaner. Fig.' 2 is a horizontal section in line as, Fig. l. Fig.

3 is a. fragmentary vertical section in line y y,

Fig. Fig. 4 is a sectional elevation showing a modified construction of the graincleaner. Fig. 5 is a horizontal section in line fc fc, Fig. 4. Fig. 6 is a vertical section showing a modilied construction of the feed mechanism.

Like letters of reference refer to like parts in the several figures.

A represents the tapering or conical scouring-case, provided with suitable slots or perfcrations, which permit the dust to escape, While retaining the grain Within the case.

B represents a blast-spout connected with the large end of the scouring-case tangentially, so that the air-current which enters the scouring-case through this spout is caused to assume a rota-tive or whirling motion within the case. This airacurrent is derived from a fan or other suitable ainpropelliug device. (Not shown in the drawings.)

C represents the head which closes the large end of the scouring-case, and which is provided with a central opening c, through which the air escapes from the machine. The opening c is preferably provided With a tubular guard d, extendinginto the scouring-case below the opening of the blast-spout B, so as to prevent any grain or dust particles from passing to the exit-opening c from the blastspout B.

e represents a small opening formed at the apex or small end of the scouring-case for the escape of the grain therefrom.

F represents the conical or tapering tight jacket which incloses the perforated scouring-case A, and f represents the dust-space formed between the tight jacket F and the ypmforated scouring-case A.

The large end ot the tight jacket F is secured to the head O, Whichv latter closes the upper end ot' the dust-space f. The small end'of the jacket F is provided With a spout g, through which the collected dust escapes from the jacket.

, 7i is the grain-discharge spout, which communicates with 'the opening c at the small end of the perforated scouring-case, and which penetrates the dust-spout g.

I represents the grainhopper, which communicates with the blast-spout B by a spout 2, provided with a gate i.

K represents the stationary frame in which the scouring-case and iuclosing-jacket are supported.

The grain is fed from the hopper I into the blast-spout B in a steady stream, and is carried by the air-current into the scouring-case A. The rotative or whirling motion of the air in the scouring-case causes the grain to move to the peripheryv of the whirling body of air and brings the grain in 'forcible contact with the perforated scouring-case. The grain is scoured by contact With Athe scouringcase, and the detached dust and impurities pass through the perforations of the scouring-case into the surrounding dust-space f. The grain passes in helical lines through the scouring-case from the large end to the small end thereof and escapes therefrom through IOO the discharge-spout h. The dust passes down over the interior surface of the tight case F in similar helical lines and escapes through the discharge-spout g. The air, freed'from grain, dust, and other solid impurities, escapes from the center or core of the whirling body of air upwardly through the opening c. The inner surface of the scouring-case maybe provided with projecting pins j, for the purpose of intensifying the scouring action. If it is desired to accelerate or retard the movementof the grain toward the grain -exit of the scouring-case, the inner surface of the latter may be provided with suitable inclined or spiral deiiecting-iianges 7c. As shown in the drawings, these iianges are arranged to accelerate the movement of the grain toward the grain-exit.

' In my improved grain-cleaner the operations of scouring the grain and'separating the dust from the air are carried on simultaneously, so that the grain and the collected dust are discharged separately and independently of the blast, which escapes from the machine practically free from solid impurities, and which can be turned directly into the mill or lother building in which the grain-cleaner is arranged.

In the modified construction of the machine represented in Fig. 4 the tight jacket L, which incloses the perforated scouring-case A, is made cylindrical and provided with a hopper-shaped bottom which delivers' the dust to a conveyer Z. The jacket L is furnished at. its upper end with a tangential spout m, through which the air escapes from said jacket, and which is preferably connected with a dust-collector M, which separates from the air any dustparticles which may be contained in the escaping air current. This dust-collector is preferably constructed as described and shown in an application for Letters Patent of the United States iled by me March 31, 1886, Serial No. 197,307, and patented May 14, 1889, No. 403,362.

The grain maybe delivered directly into the upper portion of the perforated scouringcase, where it is seized by the whirling body of air, as represent-ed in Figs. 4 and G. The scouring-case may be provided for this purpose with a grain-spout n, entering through an opening in the head C, and provided with a valve n', which prevents the air from passing'upwardly through said spout, as represented in Fig. 4; or the grain may be fed into the scouring-case by a reciprocating feed-slide O, as represented in Fig. 6.

I claim as my inventionl. The combination, with the perforated tapering separating-case having an air-exit at its large end, a discharge-opening at its small end, and a tangential inlet-spout, of a'tight case which surrounds the perforated case and collects the dust which passes through the perforations, substantially as set forth.

2. The combination, with a tapering perforated scouring-case provided at its large end with an air-exit and at .its small end with a grain-exit, of a tangential blast-spout through #which an air-current is delivered into the scouring-case, a feeder by which the grain is introduced into the air-current, and an inclosing-case which receives the dust from the scouring-case, substantially as set forth.

3. The combination, with a tapering perforated scouring-case provided at its large end with an air-exit and at its small end with a grain-exit, of a tangential blast-spout through which an air-current is delivered vinto the scouring-case, an inclosing tapering case provided at its small end with a dust-exit, and a feeder by which the grain is introduced into the air-current, substantially as set forth.

4. The combination, with a perforated scouring-case provided with exits for the grain and the air and having projecting pins secured to its inner surface, of a tangential blast-spout through which the air-current is delivered into the scouring-case, a feeder by which the grain is introduced, and an inclosing tight case provided with a dust-exit, substantially as setforth.

5. The combination, with a perforated scouring-case provided with exits for the grain and the air, of a tangential blast-spout through` which the air-current is introduced into the scouring-case, deflectors secured to the inner side of the scouring-case, a surrounding tight case provided with a dust-exit, and a grainfeeder, substantially as set forth.

Vitness my hand this 10th day of February, 1887.

O. M. MORSE. Witnesses:

C. H. BENNETT,

JNO. G. MUNDY. 

